Shannon-Arizona 2-8-0 "Consolidation" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 2 (Locobase 14075)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 45, p. 208. Works number was 33958 in October 1909.

The S-A had only been incorporated in March 1909 and this Consolidation arrived very shortly afterward. Its remit was to scale the 3.4% grades and very tight 35-degree curves (equates to radii of 166 feet or 51 metres). A few months later, the S-A bought a very similar engine from the Moctezuma Copper Company; see Locobase 13231.

Specifications by Steve Llanso of Sweat House Media
Locobase ID14075
Number in Class1
Road Numbers2
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase11'
Engine Wheelbase18.33'
Ratio of driving wheelbase to overall engine wheebase 0.60
Overall Wheelbase (engine & tender)44.46'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers101000 lbs
Engine Weight112000 lbs
Tender Light Weight60000 lbs
Total Engine and Tender Weight172000 lbs
Tender Water Capacity3000 gals
Tender Fuel Capacity (oil/coal)1200 gals
Minimum weight of rail (calculated)42 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter38"
Boiler Pressure170 psi
Cylinders (dia x stroke)18" x 20"
Tractive Effort24641 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.10
Heating Ability
Firebox Area81.50 sq. ft
Grate Area18.80 sq. ft
Evaporative Heating Surface1720 sq. ft
Superheating Surface
Combined Heating Surface1720 sq. ft
Evaporative Heating Surface/Cylinder Volume292.00
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3196
Same as above plus superheater percentage3196
Same as above but substitute firebox area for grate area13855
Power L13889
Power MT339.56

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